PHP MySQL Copy a row within the same table... with a Primary and Unique key

My table has two keys, one is an auto incrementing id (PRIMARY), the other is the name of the item (UNIQUE).

Is it possible to duplicate a row within this same table? I have tried:

INSERT INTO items
SELECT * FROM items WHERE id = '9198'

This gives the error Duplicate entry '9198' for key 'PRIMARY'

I have also tried:

INSERT INTO items
SELECT * FROM items WHERE id = '9198'
ON DUPLICATE KEY UPDATE id=id+1

Which gives the error Column 'id' in field list is ambiguous

And as far as the item name (UNIQUE) field goes, is there a way to append (Copy) to the item name, since this field must also be unique?